Chapter 1: History
The world is not what is used to be. It is now infested monsters called zombies. They are horrifying monsters that destroyed the planet. The zombies came from a meteorite that fell from outer space. There were few survivors who were brave enough to fight them. But they did not fight them without help. They had powers. Their powers came from the cores found in the zombies. That was how they fought them, but that wasn't enough. While the human evolved, the zombies evolved as well. The human fought bravely. The zombies were on the verge of extinction and the humans were very happy. But what happened next would destroy their hard work.
What happened? Stronger monsters appeared. Meteorites fell all across the world. Dimensional Rifts started to open. The monsters that came through were much stronger and intelligent. Humanity had almost went extinct in 4 years. There was only 1 person left. His name was Leo Satoru. He was the only person left. Leo did not want to give in to those monsters that destroyed his life so he fought it out to the end with them. He was also the strongest human. When more people he got the name Void Monarch. The got that name because of anything he did, he did it calmly, swiftly and always did it at night with his three weapons. They were in brains, weapons and strength.
In his last fight, he took out quite a lot of them with his sword and gun, but he knew he could not do anything significant. Leo went in the middle of the city where he was. He did that for 1 reason. It was to blow himself up. The energy inside his body was so abundant but was going rampant. The monsters feared that energy. Every monster in the area ran toward him to stop him but they were unsuccessful. The whole area turned to smithereens.
While dying he had many regrets. He said, "If I could go back in the past, I could try to prevent this from happening." A light them appeared in front of him. It sucked him in. "Where am I," he asked himself. What, why am I in my classroom. What is happening. What is going to happen now.